FlockLeader Shell & Bone Builder 5 lb

Slow-release calcium for stronger shells and healthier bones

FlockLeader Shell & Bone Builder gives your laying hens the calcium they need to produce strong eggshells and maintain healthy bones. Made from large-particle calcium carbonate harvested in the American Midwest and packaged in Arkansas, it is a 100% USA supply chain product — even the packaging is made in the USA.

Product highlights

• 95% calcium carbonate: More calcium than limestone or oyster shell.
• Large-particle formula: Absorbs slowly overnight, when hens need calcium most for eggshell formation.
• Tested for quality: Third-party tested for quality, safety, and consistency, with no heat treatment required and no risk of environmental contamination — a safe alternative to oyster shells with no pathogens and no cleaning required.
• Highly digestible: Uniform granules hens can use efficiently.
• For all poultry species: Suitable for all poultry species.
• Made in the USA: Perdue Promise certified, with a 100% USA supply chain.

Guaranteed analysis

• Calcium Carbonate (min): 95%
• Calcium (min): 38%
• Calcium (max): 40%
• Moisture (max): 0.50%

Roughly 2g of calcium is required for every eggshell, and calcium requirements are highest at night — give your hens slow-release calcium right when they need it most.